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Stator of three phase induction motor creates Rotating
Magnetic field.But why not Transformer?
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Answer Posted / somesh mohapatra
The question is why there is no rotating magnetic flux in transformers,and the answer is only due to concentrated windings.There is no concept of interaction of fluxes here.Rotating magnetic field is produced only when balanced emfs runs through distributed windings.
As for why transformer donot rotate,the answer is that in the transformer the flux (or I can say majority of the flux) remains in the core itself which is the only probable rotating part.A body cannot rotate if is not acted upon by flux from outside(say air/space),which is the case with induction motors where the rotor body is acted by rotating magnetic flux from stator which is separated through airgap.But for transformer,the flux is only within the body(core),so no case of being rotated.
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